CN208289179U - The excessive temperature drop device of transition chamber is prevented on aluminium soldering production line - Google Patents

Abstract

The utility model discloses the excessive temperature drop device of transition chamber is prevented on a kind of aluminium soldering production line, including transition chamber, the transition chamber bottom is connected with transition moist closet, transition moist closet on aluminium soldering production line Waste Heat Recovery channel and waste heat discharge pipe be connected, the transition chamber both ends form passway, screen is provided on passway, the top surface of transition chamber and side wall form cold passage interlayer, feeding door is provided on cold passage interlayer, cold passage interlayer inner space is the passage of heat, the exhaust pipe of cold passage interlayer is provided through at the top of the passage of heat, it is heat-conducting plate at the top of the transition moist closet.The utility model guarantees the quality of postorder soldering, improves product qualification rate, not only simple structure was conducive to safety operation, but also maintenance convenient for safeguarding, reduced costs, and had reached energy-saving and environment-friendly effect.

Description

The excessive temperature drop device of transition chamber is prevented on aluminium soldering production line

Technical field

The utility model relates to the technical fields of aluminium soldering production line, and in particular to prevent on a kind of aluminium soldering production line Cross the excessive temperature drop device in room.

Background technique

Aluminium soldering automatic welding production line is widely used in automobile radiators, engineering machinery radiator and various condensers Automatic welding production in, these products are assembled by the thin-walled flat tube of aluminum, fin etc., through welding flux spraying, to aluminium at Water, drying are removed in the degreasing of type part, finally enter soldering oven fusion and are welded as a whole.This full-automatic quantity-produced aluminium soldering is raw Producing line has become the preferred equipment that can not be substituted in the production of the industry products such as automobile, engineering machinery and refrigeration system.

Transition chamber in aluminium soldering automatic welding production line is the middle transition section of pre-welding treatment and atmosphere soldering, is whole Heat treatment early period started in production line and the turning point that welding is heated under airtight oxygen-free environment, and examine the aluminium of workpiece flat Whether pipe, fin linking and solder flux coating meet the sample point of soldering processes requirement.

Drying oven is connect before transition chamber, is followed by oxygen-free atmosphere protection room, this has the requirement of two o'clock technique to transition chamber, first is that work Part temperature decline generally cannot be below 50 DEG C, second is that by transition chamber to last area of drying oven need to introduce it is a certain amount of newly Fresh air, to guarantee the safe concentration of workpiece solder flux volatile organic content.But due to the aluminium flat conduit and fin for constituting product Thickness difference, the intervention of fresh air are easy to that workpiece is made to fall temperature, cause workpiece temperature decline too fast, percent thermal shrinkage is different, very It is be easy to cause deformation of products, causes to weld together in the subsequent process, high rejection rate.

In the past using electrified heating element in transition chamber, but its structure is complicated, and electrical heating elements are easy to damage, spaces compact Be inconvenient to repair, artificial feeding has security risk.

Utility model content

The utility model is exactly in order to solve the above technical problems, and to provide that a kind of process conditions are simple, i.e. reduction is set The excessive temperature drop device of transition chamber is prevented on standby and maintenance cost and safety and energy conservation and environmental protection aluminium soldering production line.

The utility model is realized according to following technical scheme:

The excessive temperature drop device of transition chamber, including transition chamber, the mistake are prevented on the aluminium soldering production line of the utility model It crosses room bottom and is connected with transition moist closet, Waste Heat Recovery channel and waste heat discharge pipe on transition moist closet and aluminium soldering production line It is connected, the transition chamber both ends form passway, are provided with screen on passway, the top surface of transition chamber and side wall are formed Cold passage interlayer, feeding door is provided on cold passage interlayer, and cold passage interlayer inner space is the passage of heat, setting at the top of the passage of heat There is the exhaust pipe across cold passage interlayer, is heat-conducting plate at the top of the transition moist closet.

The screen is separately positioned at passway on the outer layer of the internal layer of cold passage interlayer and cold passage interlayer, gear Air curtain includes the Metallic curtain for door and nonmetallic door curtain of multiple layer metal door curtain or the nonmetallic door curtain of multilayer or Spaced setting, more Gap on layer screen is staggered.

Exhaust gas emissions adjustment valve is housed, exhaust gas emissions adjustment valve is located above transition chamber on the exhaust pipe.

The heat-conducting plate includes mesh belt guiding and limit, and the mesh belt of conveying work pieces is provided in mesh belt guiding, and mesh belt is led To the two sides that mesh belt is arranged in, limit is arranged on the mesh belt of feeding door opposite side.

The transition moist closet and Waste Heat Recovery channel junction is formed with hot fume import, transition moist closet and waste heat Hot fume outlet is formed at delivery pipe.

The one side wall of the feeding door and cold passage interlayer, which seals, to be fastened.

The utility model has the advantages and positive effects of:

The utility model guarantees the quality of postorder soldering, improves product qualification rate, both simple structure was conducive to grasp safely Make, and maintenance convenient for safeguarding, reduces costs, reached energy-saving and environment-friendly effect.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the main view of the utility model transition chamber；

Fig. 3 is the side view of the utility model transition chamber；

Fig. 4 is the structural schematic diagram of the utility model heat-conducting plate.

Wherein:

1: transition chamber 2: transition moist closet

3: Waste Heat Recovery channel 4: waste heat discharge pipe

5: screen 6: cold passage interlayer

7: feeding door 8: the passage of heat

9: exhaust pipe 10: heat-conducting plate

11: exhaust gas emissions adjustment valve 12: mesh belt guiding

Indicate hot fume flow directionIndicate cold fresh air flow direction.

Specific embodiment

The utility model is described in detail with reference to the accompanying drawings and embodiments.

As shown in Figure 1, preventing the excessive temperature drop device of transition chamber, including transition chamber on the aluminium soldering production line of the utility model 1, the transition chamber bottom is connected with transition moist closet 2, the Waste Heat Recovery channel 3 on transition moist closet and aluminium soldering production line It is connected 4 with waste heat discharge pipe, Waste Heat Recovery channel is communicated by connection section with furnace heating chamber is brazed, the transition chamber both ends Passway is formed, screen 5 is provided on passway, the top surface of transition chamber and side wall form cold passage interlayer 6, cold passage interlayer On be provided with feeding door 7, cold passage interlayer inner space is the passage of heat 8, is provided through cold passage interlayer at the top of the passage of heat Exhaust pipe 9, the transition moist closet top is heat-conducting plate 10.

As Figure 2-3, the screen is separately positioned on the internal layer of cold passage interlayer and cold passage folder at passway Layer outer layer on, screen include multiple layer metal door curtain or the nonmetallic door curtain of multilayer or Spaced setting Metallic curtain for door and Nonmetallic door curtain, the gap on multilayer screen are staggered.

Exhaust gas emissions adjustment valve 11 is housed, exhaust gas emissions adjustment valve is located above transition chamber on the exhaust pipe.

As shown in figure 4, the heat-conducting plate includes mesh belt guiding 12 and guide and limit, transmission work is provided in mesh belt guiding The mesh belt of part, mesh belt are oriented to the two sides that mesh belt is arranged in, and limit is arranged on the mesh belt of feeding door opposite side.

The transition moist closet and Waste Heat Recovery channel junction is formed with hot fume import, transition moist closet and waste heat Hot fume outlet is formed at delivery pipe.

The one side wall of the feeding door and cold passage interlayer, which seals, to be fastened.

Hot fume in Waste Heat Recovery channel is that the combustion product of soldering oven combustion system entered by the draft of blower Moist closet is crossed, then flows to waste heat discharge pipe, the part hot fume stagnated in transition moist closet is by the heat-conducting plate at top to mistake It crosses room and carries out heat transfer, transition chamber utilizes the waste heat of hot fume again, and transition moist closet makes hot fume only airtight It is flowed in channel, does not have and emit influence ambient enviroment outside hot fume, be conducive to conduct more heats to transition chamber.

When the mesh belt of carrying workpiece is passed through out of transition chamber the passage of heat by heat-conducting plate, mesh belt by bracket on heat-conducting plate, Guide and limit limits the workpiece on mesh belt, passes through its positive smooth operation.

At this point, the cold passage interlayer of transition chamber will be outdoor by the passway at transition chamber both ends by the indoor negative pressure of transition Cold fresh air introduce indoor, the cold fresh air of introducing is sufficiently mutually mixed with brazing flux volatile matter, is reduced dense in the furnace of organic matter Degree.And the flux of cold fresh air can be controlled by the exhaust gas emissions adjustment valve on the exhaust pipe in the access passage of heat and be adjusted Section is discharged fume more, then indoor negative pressure is big, and fresh air introducing is more, conversely, fresh air introducing is few.

Cold passage interlayer is by cold fresh air airflow diversion simultaneously, the screen gone out by passway, can be new by part Fresh air introduces interior, and since screen is multiple layer metal door curtain in transition chamber, and each gold of multiple layer metal door curtain It is different to belong to door curtain gap length, and the gap length of each Metallic curtain for door replaces with the gap length length of adjacent metal door curtain Setting can effectively stop largely to reduce workpiece thermal loss, in conjunction with multilayer in the cold fresh air intrusion passage of heat The hot fume of waste heat and transition moist closet is slow to guarantee workpiece temperature decline in metal and nonmetallic door curtain, transition chamber.

Transition chamber side feeding door because interior is without electric heating device, biggish operating space can be reserved, fundamentally Eliminate the potential hidden danger of electrical heating elements bring.

Using the utility model before workpiece enters oxygen-free atmosphere room, the control of workpiece temperature decline is obtained effectively Guarantee, largely reduces the past without under Insulation the occurrence of workpiece temperature rapid decrease, and due to workpiece The phenomenon that deformation caused by wall unevenness is even, seam crossing cracking, soldering flux loss, product qualification rate is improved, on the other hand Solving transition chamber leads to the bad control of transition room temperature using electric heating system, and electric heating part is easy to damage, because of transition chamber space It is compact-sized to be inconvenient to the defects of repairing, and product demand is examined, and when regular pickup is spot-check in process of production, avoids behaviour Make the security risk of personnel.

The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model Embodiment should not be considered as limiting the scope of the present invention.It is made according to the scope of application of this utility model equal Deng variation and improvement etc., should still belong within the patent covering scope of the utility model.

Claims (6)

1. preventing the excessive temperature drop device of transition chamber, including transition chamber on a kind of aluminium soldering production line, it is characterised in that: the mistake It crosses room bottom and is connected with transition moist closet, Waste Heat Recovery channel and waste heat discharge pipe on transition moist closet and aluminium soldering production line It is connected, the transition chamber both ends form passway, are provided with screen on passway, the top surface of transition chamber and side wall are formed Cold passage interlayer, feeding door is provided on cold passage interlayer, and cold passage interlayer inner space is the passage of heat, setting at the top of the passage of heat There is the exhaust pipe across cold passage interlayer, is heat-conducting plate at the top of the transition moist closet.

2. preventing the excessive temperature drop device of transition chamber on aluminium soldering production line according to claim 1, it is characterised in that: described Screen be separately positioned at passway on the outer layer of the internal layer of cold passage interlayer and cold passage interlayer, screen includes multilayer Metallic curtain for door or the Metallic curtain for door and nonmetallic door curtain of the setting of the nonmetallic door curtain of multilayer or Spaced, on multilayer screen Gap is staggered.

3. preventing the excessive temperature drop device of transition chamber on aluminium soldering production line according to claim 1, it is characterised in that: described Exhaust pipe on be equipped with exhaust gas emissions adjustment valve, exhaust gas emissions adjustment valve be located at transition chamber top.

4. preventing the excessive temperature drop device of transition chamber on aluminium soldering production line according to claim 1, it is characterised in that: described Heat-conducting plate include mesh belt guiding and limit, the mesh belts of conveying work pieces is provided in mesh belt guiding, mesh belt guiding is arranged in mesh belt Two sides, limit be arranged on the mesh belt of feeding door opposite side.

5. preventing the excessive temperature drop device of transition chamber on aluminium soldering production line according to claim 1, it is characterised in that: described Transition moist closet and Waste Heat Recovery channel junction be formed with hot fume import, formed at transition moist closet and waste heat discharge pipe There is hot fume outlet.

6. preventing the excessive temperature drop device of transition chamber on aluminium soldering production line according to claim 1, it is characterised in that: described Feeding door and cold passage interlayer one side wall seal fasten.